And McBryde's plans were not helped by what he saw in Belfast as hooker Ken Owens took a serious blow to the neck, fly-half Rhys Priestland did not start after a tendon flare-up in the warm up and both Scott Williams and Liam Williams limped off with knocks.
Centre Scott Williams suffered a recurrence of a shoulder problem that has plagued him this season while Liam Williams did not return from his sin-binning with a tight hamstring.
And Scarlets head coach Simon Easterby admitted time would tell in terms of the severity of the injuries on show.
"It was a bit of a battlefield out there - all of them will be assessed in the next 48 hours," said Easterby.
"Rhys felt something in there, which he had not for ages. He made the call not to start," explained Scarlets coach Simon Easterby.
"It was a bit of a disruption but Owen Williams has gone well for us. He's been a stand out player the last couple of months - his kicking in previous games got us into this position and he did very well again, credit to him.
"This defeat will make us that more hungry to go on next season and repeat our semi-final appearance and make sure we learn from these games."